Review Request 114283: Use QtQuickControls ScrollView internally in PlasmaExtraComponents.ScrollArea

[Sebastian Kügler]

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I really like the idea. I think we should keep our Scroll* components in to ease porting, but move away from using it for our own stuff first, and then, before a first API promise, revisit if we can remove our own implementation (which I really hope we'll be able to).

I'd also like to read Marco's opinion on this.

- Sebastian Kügler


On Dec. 3, 2013, 7:09 p.m., David Edmundson wrote:
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> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/114283/
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> (Updated Dec. 3, 2013, 7:09 p.m.)
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> 
> Review request for Plasma.
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> Repository: plasma-framework
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> Description
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> Use QtQuickControls ScrollView internally
> 
> Flickable has a very odd API in which contentHeight can't be trusted. we need to update our ScrollBars/ScrollArea to make use of the new
> originX and originY in order to fix a lot of bugs that we currently see with scrollbars.
> 
> Instead of doing that, by porting to use QtQuick Controls we get all
> these bug fixes as well as _significantly_ reducing our code.
> 
> Having a separate logic vs UI, makes things (IMHO) easier to read.
> 
> I don't expect to merge this as-is; I haven't included the plasma
> feature that creates a SectionScroller if the content is a listview, but
> that should be viable. As far as I know all other features (keyboard
> controls / hiding buttons on touch screens) are still kept.
> 
> Files removed are as indication as to long term changes from making this
> change, in order to do that we need to port all users from ScrollBars ->
> ScrollArea. (which is worth doing anyway IMHO)
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> 
> Diffs
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>   src/declarativeimports/plasmacomponents/qml/ScrollBar.qml 93d7baf 
>   src/declarativeimports/plasmacomponents/qml/private/ScrollBarDelegate.qml 6b5edf0 
>   src/declarativeimports/plasmaextracomponents/qml/ScrollArea.qml 20cd943 
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> Diff: http://git.reviewboard.kde.org/r/114283/diff/
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> Testing
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> Widget Explorer in plasma-shell looks exactly as before.
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> 
> Thanks,
> 
> David Edmundson
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>

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